Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf5a427696bb4ec3…

MALICIOUS

PDF

71.0 KB Created: 2021-03-25 13:48:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 40a633a8e8cedf383b4882fef7a5ffdc SHA-1: 1f2e9399b9565aa7b7b84c046000bf025b8cc2d8 SHA-256: cf5a427696bb4ec3c2284b68a09f2a4376ea3a673b082a3891d7fa61a513bc11
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://bologen.ru/wix?keyword=parenting+rewards+and+responsibilities+chapter+2+answers PDF link annotation
    • http://vabuletarikinil.iblogger.org/nowonefa.pdfIn PDF document text
    • http://felagem.getenjoyment.net/hunger_games_book.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470402/normal_600633ff469d3.pdfIn PDF document text
    • http://adanakebap.org/transition_words_in_paragraphs_exercisesavkjn.pdfIn PDF document text
    • http://lilozekakotelup.sportsontheweb.net/tovepetet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408583/normal_604400bf4dbcc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5fdc179a5817f.pdfIn PDF document text
    • http://replyua.site/the_exorcist_2020_seriesx4nlo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377642/normal_602da04469891.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/8f0e4350-a61e-4a4b-ad34-d1ec6785dedc/atlas_copco_900_cfm_compressor_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/schengen_visa_application_form_italy_pakistan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db810608-3534-495f-8cf3-327c11358dd1/61180727568.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/bapusulurulib.pdfIn PDF document text
    • http://filosoko.onlinewebshop.net/70273120432.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/xbox_360_error_0101_fix.pdfIn PDF document text
    • http://dubejatusir.epizy.com/dikezozirubuwuvonizaz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df53f34-0c46-4619-a0d3-e25fcbb63a24/11057200572.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/cardioline_click_holter_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/zapibuwavamawaxasu.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC22 5488 bytes
SHA-256: 8941e3d5ed8defa6e88278aba8670a2482c8ed7e409dac78bf43ef28e0fe0455
font_01_sfnt_off0000dec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEC0 9840 bytes
SHA-256: 01b8dd95f406c36ed8226176b957d3d3336b12c3dd2276581d60cd3fa4a0be00
font_02_sfnt_off0001005f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1005F 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.